US20130065718A1 - Counter-Rotation Electric Machine - Google Patents

Counter-Rotation Electric Machine Download PDF

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Publication number
US20130065718A1
US20130065718A1 US13/227,506 US201113227506A US2013065718A1 US 20130065718 A1 US20130065718 A1 US 20130065718A1 US 201113227506 A US201113227506 A US 201113227506A US 2013065718 A1 US2013065718 A1 US 2013065718A1
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United States
Prior art keywords
output
input
powertrain
speed
engine
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Abandoned
Application number
US13/227,506
Inventor
Alfredo R. Munoz
Michael W. Degner
Michael T. Berhan
Shaun G. Knowles
Thomas A. McGinn
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Ford Global Technologies LLC
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Ford Global Technologies LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to US13/227,506 priority Critical patent/US20130065718A1/en
Assigned to FORD GLOBAL TECHNOLOGIES, LLC reassignment FORD GLOBAL TECHNOLOGIES, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BERHAN, MICHAEL T., DEGNER, MICHAEL W., KNOWLES, SHAUN G., MCGINN, THOMAS A., MUNOZ, ALFREDO R.
Priority to DE102012215286A priority patent/DE102012215286A1/en
Priority to CN201210326682.6A priority patent/CN102991332B/en
Publication of US20130065718A1 publication Critical patent/US20130065718A1/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/46—Series type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/0695—Inertia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2300/00—Purposes or special features of road vehicle drive control systems
    • B60Y2300/60—Control of electric machines, e.g. problems related to electric motors or generators
    • B60Y2300/65—Reduce shocks on mode change, e.g. during engine shutdown
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19023—Plural power paths to and/or from gearing
    • Y10T74/19051—Single driven plural drives

Definitions

  • This invention relates generally to an apparatus for counteracting a rolling moment produced by a power source, such as an engine, particularly in a motor vehicle powertrain.
  • a motor vehicle powertrain includes an engine, a motor/generator including a rotor, gearing including an input driveably connected to the engine, and an output secured to the rotor and driven in a rotary direction opposite to that of the input.
  • gearbox between the generator and the engine helps reduce the total packaging volume/weight and improves overall system efficiency.
  • An appropriate gear ratio can be chosen and the generator can be designed for optimal performance and minimum size while matching the engine speed vs. torque profile.
  • FIG. 1 is a top view of a powertrain for a hybrid electric vehicle
  • FIG. 2 is cross section taken at a diametric plane through an electric machine and planetary gear unit of the powertrain of FIG. 1 ;
  • FIG. 3 is a schematic diagram of an alternate arrangement of the planetary gearing.
  • powertrain 10 for use in a series hybrid electric vehicle (SHEV), includes an electric generator-gearbox set 12 (also called a genset), driveably connected to the crankshaft 14 of an internal combustion engine 16 ; a traction motor 18 , connected in series with the engine 16 and genset 12 ; a gearbox 20 , driveably connected to the traction motor for producing a range of forward ratios of the speed of the traction motor divided by the speed of the gearbox output and reverse drive; and traction wheels 22 , 24 of the vehicle. No direct mechanical connection exists between the engine 16 and the traction wheels 18 , 20 .
  • SHEV series hybrid electric vehicle
  • the genset 12 comprises a motor-generator 26 and planetary gearing 28 arranged in series between the engine crankshaft 14 and traction motor 18 .
  • the electric motor/generator 26 is mechanically coupled to a counter-rotating planetary gear unit 28 .
  • the gear unit 28 includes a sun gear 30 , ring gear 32 , planet carrier 34 , and planet pinions 36 supported on the carrier and meshing with the sun gear 30 and ring gear 32 .
  • An input shaft 38 is secured to ring gear 32 .
  • a torsion damper 40 connects crankshaft 14 and input shaft 38 .
  • the rotor 42 of the motor/generator 26 is connected to the sun gear 30 , and the stator 44 is grounded to prevent its rotating.
  • the carrier 34 of gear unit 28 is also grounded at 46 to prevent its rotating. Although this is the preferred configuration, it is understood that the carrier 34 could be allowed to rotate as well. If the carrier slips and the resultant moment transmitted to the surrounding structure is reduced, it may be better from an NVH perspective.
  • sun gear 30 , shaft 48 and the rotor 42 of motor/generator 26 are overdriven relative to the speed of crankshaft 14 and input shaft 38 .
  • Sun gear 30 , shaft 48 and the rotor 42 of motor/generator 26 rotate in the opposite direction from the direction of rotation of crankshaft 14 and input shaft 38 .
  • Input shaft 38 is supported on a bearing 50 , fitted in a housing.
  • Rotor 42 is supported on bearings 52 , 54 , fitted in a housing.
  • Thrust bearings 56 , 58 , 60 react on the housing thrust forces produced by the use of helical gears in the planetary gearing 28 .
  • a hydraulic pump 62 driven in rotation by the rotor shaft, provides a source of hydraulic line pressure for gearbox 20 , planetary gearing 26 and the bearings.
  • the motor/generator 26 is electrically connected by conductors 64 to the traction motor 18 .
  • the planetary gear unit 28 is compact, efficient and achieves both the counter-rotating effect and maintains the rotor 42 axis and input shaft 38 axis mutually aligned, thereby transmitting an oppositely directed rolling moment to the prime mover 16 , which operates to at least partially cancel the rolling moment produced by engine 14 .
  • planetary gear configurations could also be used as long as the input shaft and generator rotor rotate in opposite directions.
  • sun gear 30 were secured to input shaft 38
  • ring gear 32 were secured to shaft 48 and rotor 42
  • carrier is maintained fixed against rotation
  • ring gear 32 , shaft 48 and the rotor 42 of motor/generator 26 would rotate in the opposite direction from the direction of rotation of crankshaft 14 and slower than the speed of crankshaft 14 and input shaft 38 .
  • the motor/generator rotor 42 and engine shaft 14 rotate in opposite directions, the net rolling moment during sudden engine accelerations and decelerations is reduced, thus the relative movement of the powertrain system 10 with respect to the mounting bosses, such as engine mounts, is also reduced.
  • use of a gearing between the generator and the engine helps reduce the total packaging volume/weight and improves overall system efficiency. By choosing the appropriate gear ratio the generator can be designed for optimal performance and minimum size while matching the engine speed vs. torque profile.

Abstract

A motor vehicle powertrain includes an engine, a motor/generator including a rotor, gearing including an input driveably connected to the engine, and an output secured to the rotor and driven in a rotary direction opposite to that of the input.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • This invention relates generally to an apparatus for counteracting a rolling moment produced by a power source, such as an engine, particularly in a motor vehicle powertrain.
  • 2. Description of the Prior Art
  • When a spinning mass supported on a frame is accelerated or decelerated about the axis of spin, a dynamic reaction torque is transferred to the frame. This reaction torque, known as a rolling moment, tends to rotate the whole assembly around the axis of rotation. If the frame is mounted on elastic mountings, the whole frame will experience a small rotation with respect to the steady state position every time acceleration or deceleration of the mass is produced. To accommodate for these movements and prevent the assembly from striking other objects in close proximity, extra space is needed around the assembly. The rolling moment also produces additional mechanical stress in the support on which the mass is mounted.
  • In a motor vehicle whose available space in the engine compartment under the hood is very limited, the need for additional empty space around any assembly or system is critical. In particular, the engine of a vehicle tends to exhibit a rather large rolling moment during sudden accelerations, resulting in a large voided, wasted space around the engine and transmission as that assembly rolls on the elastic engine supports located on the vehicle's chassis. If a rotating load is attached to the engine output shaft, such that this load would counteract and reduce the rolling moment of the combined engine load system, the rocking movement of the engine load can be reduced, thus reducing the amount of wasted space.
    • SUMMARY OF THE INVENTION
  • A motor vehicle powertrain includes an engine, a motor/generator including a rotor, gearing including an input driveably connected to the engine, and an output secured to the rotor and driven in a rotary direction opposite to that of the input.
  • By having the genset rotor and engine shaft 14 rotate in opposite directions, the net rolling moment during sudden engine accelerations and decelerations is reduced, thus the relative movement of the powertrain system with respect to the mounting bosses, is reduced.
  • Use of a gearbox between the generator and the engine helps reduce the total packaging volume/weight and improves overall system efficiency. An appropriate gear ratio can be chosen and the generator can be designed for optimal performance and minimum size while matching the engine speed vs. torque profile.
  • Because of the smaller relative engine movement, other under-the-hood subsystems can be packaged closer to the engine yielding new space saving opportunities.
  • The scope of applicability of the preferred embodiment will become apparent from the following detailed description, claims and drawings. It should be understood, that the description and specific examples, although indicating preferred embodiments of the invention, are given by way of illustration only. Various changes and modifications to the described embodiments and examples will become apparent to those skilled in the art.
    • DESCRIPTION OF THE DRAWINGS
  • The invention will be more readily understood by reference to the following description, taken with the accompanying drawings, in which:
  • FIG. 1 is a top view of a powertrain for a hybrid electric vehicle;
  • FIG. 2 is cross section taken at a diametric plane through an electric machine and planetary gear unit of the powertrain of FIG. 1; and
  • FIG. 3 is a schematic diagram of an alternate arrangement of the planetary gearing.
    •  DESCRIPTION OF THE PREFERRED EMBODIMENT
  • Referring now to the drawings, powertrain 10, for use in a series hybrid electric vehicle (SHEV), includes an electric generator-gearbox set 12 (also called a genset), driveably connected to the crankshaft 14 of an internal combustion engine 16; a traction motor 18, connected in series with the engine 16 and genset 12; a gearbox 20, driveably connected to the traction motor for producing a range of forward ratios of the speed of the traction motor divided by the speed of the gearbox output and reverse drive; and traction wheels 22, 24 of the vehicle. No direct mechanical connection exists between the engine 16 and the traction wheels 18, 20.
  • The genset 12 comprises a motor-generator 26 and planetary gearing 28 arranged in series between the engine crankshaft 14 and traction motor 18. The electric motor/generator 26 is mechanically coupled to a counter-rotating planetary gear unit 28.
  • The gear unit 28 includes a sun gear 30, ring gear 32, planet carrier 34, and planet pinions 36 supported on the carrier and meshing with the sun gear 30 and ring gear 32. An input shaft 38 is secured to ring gear 32. A torsion damper 40 connects crankshaft 14 and input shaft 38. As FIG. 2 shows, the rotor 42 of the motor/generator 26 is connected to the sun gear 30, and the stator 44 is grounded to prevent its rotating. The carrier 34 of gear unit 28 is also grounded at 46 to prevent its rotating. Although this is the preferred configuration, it is understood that the carrier 34 could be allowed to rotate as well. If the carrier slips and the resultant moment transmitted to the surrounding structure is reduced, it may be better from an NVH perspective.
  • Due to torsion reaction of gear unit 28 being provided by carrier 28, sun gear 30, shaft 48 and the rotor 42 of motor/generator 26 are overdriven relative to the speed of crankshaft 14 and input shaft 38. Sun gear 30, shaft 48 and the rotor 42 of motor/generator 26 rotate in the opposite direction from the direction of rotation of crankshaft 14 and input shaft 38.
  • Input shaft 38 is supported on a bearing 50, fitted in a housing. Rotor 42 is supported on bearings 52, 54, fitted in a housing. Thrust bearings 56, 58, 60 react on the housing thrust forces produced by the use of helical gears in the planetary gearing 28.
  • A hydraulic pump 62, driven in rotation by the rotor shaft, provides a source of hydraulic line pressure for gearbox 20, planetary gearing 26 and the bearings.
  • The motor/generator 26 is electrically connected by conductors 64 to the traction motor 18.
  • The planetary gear unit 28 is compact, efficient and achieves both the counter-rotating effect and maintains the rotor 42 axis and input shaft 38 axis mutually aligned, thereby transmitting an oppositely directed rolling moment to the prime mover 16, which operates to at least partially cancel the rolling moment produced by engine 14.
  • Other planetary gear configurations could also be used as long as the input shaft and generator rotor rotate in opposite directions. For example, as shown in FIG. 3, if sun gear 30 were secured to input shaft 38, ring gear 32 were secured to shaft 48 and rotor 42, and carrier is maintained fixed against rotation, ring gear 32, shaft 48 and the rotor 42 of motor/generator 26 would rotate in the opposite direction from the direction of rotation of crankshaft 14 and slower than the speed of crankshaft 14 and input shaft 38.
  • Because the motor/generator rotor 42 and engine shaft 14 rotate in opposite directions, the net rolling moment during sudden engine accelerations and decelerations is reduced, thus the relative movement of the powertrain system 10 with respect to the mounting bosses, such as engine mounts, is also reduced. In addition, use of a gearing between the generator and the engine helps reduce the total packaging volume/weight and improves overall system efficiency. By choosing the appropriate gear ratio the generator can be designed for optimal performance and minimum size while matching the engine speed vs. torque profile.
  • Because of the smaller relative engine movement, other under-the-hood subsystems can be packaged closer to the engine 16 providing new space saving opportunities. From the perspective of the motor/generator 26, the direction of rotation is unimportant. Therefore, no penalty results due to the counter-rotating gearing 28 and motor/generator 26.
  • Although the description is based on a series generator topology it is understood that this arrangement, and its benefits, could be used in any situation where an engine is attached to a spinning load.
  • In accordance with the provisions of the patent statutes, the preferred embodiment has been described. However, it should be noted that the alternate embodiments can be practiced otherwise than as specifically illustrated and described.

Claims (16)

1. A motor vehicle powertrain, comprising:
an engine;
a motor/generator including a rotor;
gearing including an input driveably connected to the engine, and an output secured to the rotor and driven in a rotary direction opposite to that of the input.
2. The powertrain of claim 1, wherein the output is overdriven relative to the speed of the input.
3. The powertrain of claim 1, wherein the gearing includes:
a sun gear connected to the output;
a ring gear connected to the input;
a planet carrier secured against rotation; and
planet pinions supported on the carrier and meshing with the sun gear and ring gear.
4. The powertrain of claim 1, wherein the output is underdriven relative to the speed of the input.
5. The powertrain of claim 1, wherein the gearing includes:
a sun gear connected to the input;
a ring gear connected to the output;
a planet carrier secured against rotation; and
planet pinions supported on the carrier and meshing with the sun gear and ring gear.
6. The powertrain of claim 1, further comprising:
a traction motor;
driven wheels of the vehicle; and
a gearbox including a second output connected to the driven wheels, the gearbox producing a range of forward ratios of a speed of the traction motor divided by a speed of the second output and reverse drive.
7. A motor vehicle powertrain, comprising:
an engine including;
a motor/generator including a rotor;
planetary gearing including an input driveably connected to the power source, and an output secured to the rotor and driven at a speed different from a speed of the engine and in a rotary direction opposite to that of the input.
8. The powertrain of claim 7, wherein the output is overdriven relative to the speed of the input.
9. The powertrain of claim 7, wherein the planetary gearing includes:
a sun gear connected to the output;
a ring gear connected to the input;
a planet carrier secured against rotation; and
planet pinions supported on the carrier and meshing with the sun gear and ring gear.
10. The powertrain of claim 7, wherein the planetary gearing includes:
a sun gear connected to the output;
a ring gear connected to the input;
a planet carrier that rotates; and
planet pinions supported on the carrier and meshing with the sun gear and ring gear.
11. The powertrain of claim 7, wherein the output is underdriven relative to the speed of the input.
12. The powertrain of claim 7, wherein the gearing includes:
a sun gear connected to the input;
a ring gear connected to the output;
a planet carrier secured against rotation; and
planet pinions supported on the carrier and meshing with the sun gear and ring gear.
13. The powertrain of claim 7, wherein the gearing includes:
a sun gear connected to the input;
a ring gear connected to the output;
a planet carrier that rotates; and
planet pinions supported on the carrier and meshing with the sun gear and ring gear.
14. The powertrain of claim 7, further comprising:
a traction motor;
driven wheels of the vehicle; and
a gearbox including a second output connected to the driven wheels, the gearbox producing a range of forward ratios of a speed of the traction motor divided by a speed of the second output and reverse drive.
15. A method for resisting a rolling moment produced by rotary acceleration and deceleration, comprising:
(a) connecting an engine to an input of a planetary gearset;
(b) connecting an output of said gearset to a rotor of a motor/generator;
(c) holding against rotation a component of the gearset such that the output and rotor rotate in a direction opposite to the rotary direction of the engine.
16. The method of claim 13, further comprising holding against rotation a component of the gearset such that the output and rotor rotate at a greater speed than a speed of the engine.
US13/227,506 2011-09-08 2011-09-08 Counter-Rotation Electric Machine Abandoned US20130065718A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US13/227,506 US20130065718A1 (en) 2011-09-08 2011-09-08 Counter-Rotation Electric Machine
DE102012215286A DE102012215286A1 (en) 2011-09-08 2012-08-29 Opposing electric machine
CN201210326682.6A CN102991332B (en) 2011-09-08 2012-09-05 A kind of Counter-rotation electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/227,506 US20130065718A1 (en) 2011-09-08 2011-09-08 Counter-Rotation Electric Machine

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CN (1) CN102991332B (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
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CN111764998A (en) * 2020-07-18 2020-10-13 刘少林 Multi-rotor pure rolling internal combustion engine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105539167B (en) * 2015-12-30 2018-11-30 北京新能源汽车股份有限公司 Stroke-increasing electric automobile and its noise suppressing method
DE102020210488A1 (en) 2020-08-18 2022-02-24 Volkswagen Aktiengesellschaft Internal combustion engine for a motor vehicle and motor vehicle with an internal combustion engine

Citations (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5428274A (en) * 1991-11-22 1995-06-27 Toyota Jidosha Kabushiki Kaisha Drive control apparatus of series hybrid vehicle
US5786640A (en) * 1995-02-13 1998-07-28 Nippon Soken, Inc. Generator control system for a hybrid vehicle driven by an electric motor and an internal combustion engine
US6026921A (en) * 1998-03-20 2000-02-22 Nissan Motor Co., Ltd Hybrid vehicle employing parallel hybrid system, using both internal combustion engine and electric motor for propulsion
US6054844A (en) * 1998-04-21 2000-04-25 The Regents Of The University Of California Control method and apparatus for internal combustion engine electric hybrid vehicles
US6064161A (en) * 1997-12-25 2000-05-16 Nissan Motor Co., Ltd. Vehicle drive device and vehicle drive device control method
US6105697A (en) * 1996-04-01 2000-08-22 Weaver; Winstead B. Hybrid turbine-electric motor system
US6223842B1 (en) * 1998-05-18 2001-05-01 Hitachi, Ltd. Hybrid vehicle
US6278280B1 (en) * 1998-05-14 2001-08-21 Nissan Motor Co., Ltd. Battery inactivation detection device
US6278915B1 (en) * 1999-02-17 2001-08-21 Nissan Motor Co., Ltd. Driving force control system for automotive vehicle
US6447417B2 (en) * 2000-03-06 2002-09-10 Nissan Motor Co., Ltd. Drive force transmission mechanism for hybrid vehicle
US6687581B2 (en) * 2001-02-07 2004-02-03 Nissan Motor Co., Ltd. Control device and control method for hybrid vehicle
US6721637B2 (en) * 2001-07-18 2004-04-13 Nissan Motor Co., Ltd. Hybrid vehicle
US6808470B2 (en) * 2001-11-29 2004-10-26 Daimlerchrysler Ag Motor vehicle drive
US6881167B2 (en) * 2002-07-10 2005-04-19 Nissan Motor Co., Ltd. Torque controlling apparatus and method for hybrid vehicle
US7196430B2 (en) * 2003-02-12 2007-03-27 Tai-Her Yang Partial-powered series hybrid driving system
US7315090B2 (en) * 2003-02-12 2008-01-01 Tai-Her Yang Series-parallel dual power hybrid driving system
US20080223631A1 (en) * 2005-10-14 2008-09-18 Volvo Construction Equipment Ab Working Machine
US7469169B2 (en) * 2003-08-12 2008-12-23 Zf Friedrichshafen Ag Method for control of input power distribution in a motor vehicle with hybrid engine drive
US20090288893A1 (en) * 2008-05-09 2009-11-26 John C. Wyall Controllerless electric drive system
US20100084207A1 (en) * 2008-05-09 2010-04-08 Wyall John C Controllerless electric drive system
US20100094492A1 (en) * 2006-10-06 2010-04-15 Volvo Construction Equipment Ab Method for operating a working machine and a working machine with an improved transmission line
US20100121512A1 (en) * 2008-11-07 2010-05-13 Toyota Jidosha Kabushiki Kaisha Hybrid vehicle and control method thereof
US20100326752A1 (en) * 2007-11-08 2010-12-30 Evo Electric Ltd Drivetrain for a Hybrid Electric Vehicle
US8100207B2 (en) * 2006-10-31 2012-01-24 Toyota Jidosha Kabushiki Kaisha Power output apparatus, hybrid vehicle having the same, and method of controlling the power output apparatus
US8177671B2 (en) * 2007-09-18 2012-05-15 Toyota Jidosha Kabushiki Kaisha Control system for hybrid drive unit
US8347998B2 (en) * 2005-10-14 2013-01-08 Volvo Construction Equipment Ab Working machine with one or more electric machines for driving, braking, and/or generating power and a method for operating such a working machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090071733A1 (en) * 2007-09-18 2009-03-19 Zhihui Duan Hybrid electric vehicle
JP4505521B2 (en) * 2008-07-09 2010-07-21 本田技研工業株式会社 Power equipment
CN101423020B (en) * 2008-12-09 2013-06-19 重庆长安汽车股份有限公司 Electromechanical power coupling mechanism of automobile oil electricity hybrid power system
US8328674B2 (en) * 2010-01-25 2012-12-11 GM Global Technology Operations LLC Hybrid powertrain with single motor/generator connected to final drive assembly and method of assembly

Patent Citations (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5428274A (en) * 1991-11-22 1995-06-27 Toyota Jidosha Kabushiki Kaisha Drive control apparatus of series hybrid vehicle
US5786640A (en) * 1995-02-13 1998-07-28 Nippon Soken, Inc. Generator control system for a hybrid vehicle driven by an electric motor and an internal combustion engine
US6105697A (en) * 1996-04-01 2000-08-22 Weaver; Winstead B. Hybrid turbine-electric motor system
US6064161A (en) * 1997-12-25 2000-05-16 Nissan Motor Co., Ltd. Vehicle drive device and vehicle drive device control method
US6026921A (en) * 1998-03-20 2000-02-22 Nissan Motor Co., Ltd Hybrid vehicle employing parallel hybrid system, using both internal combustion engine and electric motor for propulsion
US6054844A (en) * 1998-04-21 2000-04-25 The Regents Of The University Of California Control method and apparatus for internal combustion engine electric hybrid vehicles
US6278280B1 (en) * 1998-05-14 2001-08-21 Nissan Motor Co., Ltd. Battery inactivation detection device
US6223842B1 (en) * 1998-05-18 2001-05-01 Hitachi, Ltd. Hybrid vehicle
US6318486B2 (en) * 1998-05-18 2001-11-20 Hitachi, Ltd. Hybrid vehicle
US6278915B1 (en) * 1999-02-17 2001-08-21 Nissan Motor Co., Ltd. Driving force control system for automotive vehicle
US6447417B2 (en) * 2000-03-06 2002-09-10 Nissan Motor Co., Ltd. Drive force transmission mechanism for hybrid vehicle
US6687581B2 (en) * 2001-02-07 2004-02-03 Nissan Motor Co., Ltd. Control device and control method for hybrid vehicle
US6721637B2 (en) * 2001-07-18 2004-04-13 Nissan Motor Co., Ltd. Hybrid vehicle
US6808470B2 (en) * 2001-11-29 2004-10-26 Daimlerchrysler Ag Motor vehicle drive
US6881167B2 (en) * 2002-07-10 2005-04-19 Nissan Motor Co., Ltd. Torque controlling apparatus and method for hybrid vehicle
US7196430B2 (en) * 2003-02-12 2007-03-27 Tai-Her Yang Partial-powered series hybrid driving system
US7315090B2 (en) * 2003-02-12 2008-01-01 Tai-Her Yang Series-parallel dual power hybrid driving system
US7469169B2 (en) * 2003-08-12 2008-12-23 Zf Friedrichshafen Ag Method for control of input power distribution in a motor vehicle with hybrid engine drive
US20080223631A1 (en) * 2005-10-14 2008-09-18 Volvo Construction Equipment Ab Working Machine
US8347998B2 (en) * 2005-10-14 2013-01-08 Volvo Construction Equipment Ab Working machine with one or more electric machines for driving, braking, and/or generating power and a method for operating such a working machine
US20100094492A1 (en) * 2006-10-06 2010-04-15 Volvo Construction Equipment Ab Method for operating a working machine and a working machine with an improved transmission line
US8100207B2 (en) * 2006-10-31 2012-01-24 Toyota Jidosha Kabushiki Kaisha Power output apparatus, hybrid vehicle having the same, and method of controlling the power output apparatus
US8177671B2 (en) * 2007-09-18 2012-05-15 Toyota Jidosha Kabushiki Kaisha Control system for hybrid drive unit
US20100326752A1 (en) * 2007-11-08 2010-12-30 Evo Electric Ltd Drivetrain for a Hybrid Electric Vehicle
US20090288893A1 (en) * 2008-05-09 2009-11-26 John C. Wyall Controllerless electric drive system
US20100084207A1 (en) * 2008-05-09 2010-04-08 Wyall John C Controllerless electric drive system
US20100121512A1 (en) * 2008-11-07 2010-05-13 Toyota Jidosha Kabushiki Kaisha Hybrid vehicle and control method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111764998A (en) * 2020-07-18 2020-10-13 刘少林 Multi-rotor pure rolling internal combustion engine

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